PPChoiceParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Tue, 08 Sep 2015 02:49:45 +0100
changeset 544 69b6f2f0df1d
parent 377 6112a403a52d
child 642 77d5fddb6462
permissions -rw-r--r--
Portabiluty: use `Exception new signal: message` to throw exceptions ...instead of #signalWith: It seems that this is the only portable way to throw exceptions (at least among Pharo and Smalltalk/X)

"{ Package: 'stx:goodies/petitparser' }"

PPListParser subclass:#PPChoiceParser
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'PetitParser-Parsers'
!


!PPChoiceParser methodsFor:'operations'!

/ aRule 
	^ self copyWith: aRule
! !

!PPChoiceParser methodsFor:'parsing'!

parseOn: aPPContext
	"This is optimized code that avoids unnecessary block activations, do not change. When all choices fail, the last failure is answered."

	| element |
	1 to: parsers size do: [ :index |
		element := (parsers at: index)
			parseOn: aPPContext.
		element isPetitFailure
			ifFalse: [ ^ element ] ].
	^ element
! !

!PPChoiceParser class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPChoiceParser.st,v 1.3 2012-05-04 22:05:05 vrany Exp $'
!

version_CVS
    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPChoiceParser.st,v 1.3 2012-05-04 22:05:05 vrany Exp $'
!

version_SVN
    ^ '§Id: PPChoiceParser.st 2 2010-12-17 18:44:23Z vranyj1 §'
! !